Condensation Phenomena in High Speed Flow of Steam

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Abstract
This paper, starting from the nucleation theory, treats numerically the condensing flow of steam in a nozzle and compares the results with existing experimental observations. It is shown that the location of the condensation shock in the theoretical solutions is sensitive to the values adopted for the friction factor, condensation coefficient and variations in surface tension at small droplet sizes. By using friction factors reported in the literature, good agreement between theoretical and experimental results is obtained when the condensation coefficient is taken as 0036 and the surface tension is taken to vary in accordance with Benson and Shuttleworth's model.

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